package cn.edu.fudan.type;

/**
 * Created by 80494 on 2017/4/9.
 */
public class TwoTuple<A,B>{
    public final A first;
    public final B second;
    public TwoTuple(A a, B b){
        first = a;
        second =b;
    }
    public String toString() {
        return "("+first+", "+second+")";
    }
}
